111.Ventilation of change rooms and toilets: During the hours of operation of an establishment, the change rooms and washrooms shall be ventilated toward the outside of the establishment, either naturally in accordance with section 102, or mechanically by extraction in accordance with the standards prescribed in the following table:
Place Ventilation (in cubic metres of air per hour) ________________________________________________________________
Change hooks or lockers 18 m3/h per square rooms for street clothes metre of the room’s or unsoiled work surface area. clothes _______________________________________________
hooks or lockers the greater of: for damp work 36 m3/h per square clothes (drying metre of the room’s facilities) surface area, and 12 m3/h per locker. ________________________________________________________________
Toilets and the greater of: urinals - 36 m3/h per square metre of the room’s surface area, and - 45 m3/h per toilet or urinal, but not less than 350 m3/h. ________________________________________________________________
Showers the greater of: - 36 m3/h per square metre of the room’s surface area, and - 90 m3/h per shower head, but not less than 350 m3/h. ________________________________________________________________
Where a washroom is ventilated naturally, the ventilation area per toilet shall be 0.1 m2.